Add Larus driver

This commit adds a driver for Larus devices to XCSoar. The following
values are transferred from the sensor box to XCSoar:
- current attitude: roll, pitch and yaw angle
- battery voltage
- total energy variometer
- pressure height
- true airspeed
- wind angle and speed

In addition, some setting parameters can be exchanged bidirectionally:
- MacCready
- ballast
- bugs
- QNH

Documentation https://github.com/larus-breeze/doc_larus
Emulator https://github.com/larus-breeze/sw_tools

NEWS.txt

@@ -6,6 +6,8 @@ Version 7.43 - not yet released
   - NumberEntry dialog value can now be accepted by enter
   - Vario center gross label
   - Vario use AutoFonts for lables and values
+* devices
+  - add Larus driver
 * windows
  - black text color in airspace list like all other systems
 * Kobo

build/driver.mk

@@ -126,6 +126,7 @@ DRIVER_SOURCES = \
 	$(DRIVER_SRC_DIR)/Vaulter.cpp \
 	$(DRIVER_SRC_DIR)/KRT2.cpp \
 	$(DRIVER_SRC_DIR)/AirControlDisplay.cpp \
+	$(DRIVER_SRC_DIR)/Larus.cpp \
 	$(DRIVER_SRC_DIR)/ATR833/Device.cpp \
 	$(DRIVER_SRC_DIR)/ATR833/Register.cpp
 

src/Device/Config.hpp

@@ -128,6 +128,11 @@ struct DeviceConfig {
    */
   StaticString<64> path;
 
+  /**
+   * The path name of the bluetooth port, e.g. "COM15 (Larus1234)".
+   */
+  StaticString<128> port_name;
+
   /**
    * The Bluetooth MAC address of the peer.
    */